Sanford Police Detectives Chris Serino and Doris Singleton interviewed George Zimmerman in the hours and days after he killed Trayvon Martin. Newly released video and audio proves that they both had serious reservations about his story, reports the Miami Herald.

Detailing his encounter with Martin, Zimmerman told Singleton that the “bad guys always get away. ” This prompted Serino to accuse Zimmerman of profiling:

“You wanted to catch him. You wanted to catch the bad guy, the f—–g punk who can’t get away,” Serino said.

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Zimmerman replied, “I wasn’t following him; I was just going in the same direction he was.”

Serino responded, “That’s following.”

Serino referred to Zimmerman as probably being a “good guy,” but found it suspicious that his minor injuries didn’t match his account of being viciously beaten by a “child” carrying candy and an iced tea. He also noted that Zimmerman had no defensive wounds on his hands, as one would expect from such a violent struggle.

Zimmerman repeatedly told police that Trayvon Martin sucker-punched him, tried to suffocate him and bashed his head into the concrete to the point it felt his “head was going to explode.” He said Trayvon tried to take his gun from him before saying: “You’re going to die tonight, motherf—–.”

But Serino wondered why Zimmerman’s skull wasn’t fractured, why he didn’t know the street names of a tiny neighborhood where he’d lived for three years… Serino got him to acknowledge what Trayvon’s parents and lawyers have said all along: that Zimmerman got out of his car that night not so much to check for an address to give police, but to find out where the teen went.

“That was a kid with a future, a kid with folks that care. Not a goon,” he said. “In his mind’s eye, he perceived you as a threat. He has every right to defend himself.”

Zimmerman recounts the events of the night of Martin’s murder as follows:

“He just punched me in the nose. And I fell backwards and to the side, and somehow I wound up on my back. He ended up on top of me. And he just kept punching my face. And my head. And I was screaming for help,” Zimmerman said.

“Shut the f— up,” Trayvon said as he kept punching him, Zimmerman recounted.

“He slammed my head into the concrete,” Zimmerman said. “Each time it felt like my head was going to explode… And then he covered my nose with one hand and my mouth with the other one. And he told me shut the f— up. And I couldn’t breathe. I was suffocating. And all I could think about was I didn’t want him to keep slamming my head against the concrete.”

At that point Serino plays a 911 call where you can hear the screams in the background — Zimmerman claims that it’s him screaming and Martin’s mother, Sybrina Fulton, says that it’s clearly her son — and asked Zimmerman how is it that he’s screaming if Martin was covering his mouth.

In a separate interview, Singleton accuses Zimmerman of misleading her on the night of Martin’s death when he said that the only reason that he got out of his car was to verify the address for the police.

“You decided to get the address a fraction of a second after you said, ‘Oh s–t. He’s running?’” Det. Singleton said. “And it sounds like you’re running too.”

Zimmerman’s reply: It was just windy.

Other discrepancies include the words Zimmerman claims Martin said to him: “You got a problem?” Zimmerman said Trayvon asked. In a different statement he said Trayvon was more aggressive, “You got a f—ing problem, homie?”

As previously reported by NewsOne, Detective Serino wanted to charge Zimmerman with manslaughter charges on the night that he killed Martin, but was told by the Florida state attorney’s office to hold off on the charge because they determined there was not enough evidence to lead to a conviction.